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Optical Transport Networks
Profitably meeting the increasing demand for broadband services requires a transport technology with a lower cost per bit than traditional circuit switched technology. Optical transport network (OTN) technology reduces transport costs and enhances network and performance management functions. Forward error correction (FEC) algorithms improve the reach of transmission links, helping to reduce regenerators and optimize spectral efficiency. OTN reduces OPEX and capital expenditures (CAPEX) because it is simpler to operate than SONET/SDH, scales to higher rates, extends reach between difficult nodes and offers transparent delivery of client signals. An OTN provides a much simpler transport protocol than SONET/SDH and is optimized for transport applications and not burdened with SONET/SDH provisioning-intensive switching layer functionality. OTN services are also better suited for the transparent mapping and transport of native client traffic through metro and long-haul networks.
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Verification of network elements, reduction of installation times and assurance of service availability are all required to ensure customer retention. |
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In order for operators and NEMs to
address these challenges, they must
possess a suite of instruments,
systems and services provides an
integrated, end-to-end approach to
testing carrier-based Ethernet. For
example, a rugged handheld 10-GE
multifunction tester streamlines the
installation and maintenance of Carrier-
grade Ethernet services. It supports
applications ranging from Ethernet and
IP SLA verifications including VPLS/
MPLS to verification of PBB/OAM
functionality to ensure compliance with
Carrier Ethernet SLAs.
Innovative test applications simplify the
complexity of installing, troubleshooting
and maintaining carrier Ethernet
networks. They probe, discover and
record the health and reliability of the
network by characterizing the
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Test equipment helps meet the challenge
Carrier-grade Ethernet networks facilitate service aggregation and work in concert with different network infrastructures and tunneling technologies that provide common QoS, traffic engineering, OAM, redundancy and scalability across the enterprise. The result is a complex mix of parameters and requirements that present many challenges to network equipment manufacturers (NEMs) and service providers. Verification of network elements, reduction of installation times and assurance of service availability are all required to deliver the high QoS needed to ensure customer retention.
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transport layers and the higher-layer
TCP/IPT based flows that impact
applications and services. The test
information is delivered in simplified
summary format to simplify results
interpretation. Technicians at all levels
can make informed configuration
changes on their own, without having
to involve more senior technicians,
based on industry best practices,
improving the speed and efficiency of
problem resolution. The net result is
that service organizations can reduce
operating expenses by expediting
network fault resolution and circuit
installation.
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